The application is at 35U.S.C § 119(e) regulation under require on September 16th, 2010 to submit to name be called the U.S. Provisional Application No.61/383 of " IMPROVED SLEEVE SEAL FOR GATE VALVES ", the rights and interests of 428, the full content of this U.S. Provisional Application is incorporated to herein by reference, and this application claims the preference of this U.S. Provisional Application.
Summary of the invention
Disclose the embodiment of gate valve sleeve, described gate valve sleeve comprises: cylindrical jacket barrel member, and described cylindrical jacket barrel member has layout nose at one end; And reinforcement, described reinforcement is arranged in described cylindrical jacket barrel member.Described reinforcement comprises the first isolated ring element and the second isolated ring element that are connected by multiple spacer member.One in described first isolated ring element and described second isolated ring element is adjacent to locate with described nose.
Disclose a kind of embodiment of gate valve, this gate valve comprises main body, valve plate and pair of cylinders shape shroud member.Each cylindrical jacket barrel member of pair of cylinders shape shroud member has: elastomer sleeve, and described elastomer sleeve has nose at one end; And reinforcement, described reinforcement is arranged in described elastomer sleeve.Described reinforcement comprises the first isolated ring element and the second isolated ring element that are connected by multiple spacer member.Described pair of cylinders shape shroud member is positioned in valve body, makes their corresponding nose opposite each other.Described a pair nose is also located so that when described valve is in an open position, described nose is engaged with each other to seal the stream in described valve, and when described valve is in the closed position, described nose engages the relative both sides of described valve plate in case fluid flows to the outlet of valve from the entrance of valve.
Disclose the second embodiment of gate valve sleeve, this gate valve sleeve: comprise cylindrical jacket barrel member, described cylindrical jacket barrel member has layout nose at one end; And reinforcement, described reinforcement is arranged in described cylindrical jacket barrel member.Described reinforcement comprises first ring component and the second ring element, and described first ring component and described second ring element abut to form T section, and a ring element in described first ring component and described second ring element and described nose are adjacent to locate.
Disclose the second embodiment of gate valve, this gate valve comprises main body, valve plate and pair of cylinders shape shroud member.Each cylindrical jacket barrel member of pair of cylinders shape shroud member comprises: elastomer sleeve, and described elastomer sleeve has nose at one end; And reinforcement, described reinforcement is arranged in described elastomer sleeve.Described reinforcement comprises abutting with the first ring component and the second ring element that form T section.Described pair of cylinders shape shroud member is positioned in valve body, makes their corresponding nose opposite each other.Described a pair nose is also located so that when described valve is in an open position, described nose is engaged with each other to seal the stream in described valve, and when described valve is in the closed position, described nose engages the relative both sides of described valve plate in case fluid flows to the outlet of valve from the entrance of valve.
Disclose the 3rd embodiment of gate valve sleeve, described gate valve sleeve comprises: cylindrical jacket barrel member, and described cylindrical jacket barrel member has layout nose at one end; And reinforcement, described reinforcement is arranged in described cylindrical jacket barrel member.Described reinforcement comprises the ring element engaged with the spacer member of multiple axial orientation.The surface of described reinforcement and described nose is located away from the first axial distance, makes the ratio of the thickness of this first axial distance and described nose in the scope of about 20% to about 50%.
Disclose the 3rd embodiment of gate valve, this gate valve comprises main body, valve plate and pair of cylinders shape shroud member.Each cylindrical jacket barrel member of pair of cylinders shape shroud member comprises: elastomer sleeve, and described elastomer sleeve has nose at one end; And reinforcement, described reinforcement is arranged in described elastomer sleeve.Described reinforcement comprises the ring element engaged with the spacer member of multiple axial orientation.The surface of described reinforcement and described nose is located away from the first axial distance, makes the ratio of the thickness of this first axial distance and described nose in the scope of about 20% to about 50%.Described pair of cylinders shape shroud member is positioned in valve body, makes their corresponding nose opposite each other.Described a pair nose is also located so that when described valve is in an open position, described nose is engaged with each other to seal the stream in described valve, and when described valve is in the closed position, described nose engages the relative both sides of described valve plate in case fluid flows to the outlet of valve from the entrance of valve.
Disclose the 4th embodiment of gate valve sleeve, described gate valve sleeve comprises: cylindrical jacket barrel member, and described cylindrical jacket barrel member has layout nose at one end; And reinforcement, described reinforcement is arranged in described cylindrical jacket barrel member.Described reinforcement comprises the first isolated ring element and the second isolated ring element that are connected by multiple pin.Described first isolated ring element and described second isolated ring element are fixed to described multiple pin, and described second isolated component engages in slidable mode with described multiple pin.Wherein, a ring element in described first isolated ring element and described second isolated ring element and described nose are adjacent to locate.
Disclose the 4th embodiment of gate valve, this gate valve comprises main body, valve plate and pair of cylinders shape shroud member.Each cylindrical jacket barrel member of pair of cylinders shape shroud member comprises: elastomer sleeve, and described elastomer sleeve has nose at one end; And reinforcement, described reinforcement is arranged in described elastomer sleeve.Described reinforcement comprises the first isolated ring element and the second isolated ring element that are connected by multiple pin.Described first isolated ring element is fixed to described multiple pin, and described second isolated ring element slidably engages with described multiple pin.Described pair of cylinders shape shroud member is positioned in valve body, makes their corresponding nose opposite each other.Described a pair nose is also located so that when described valve is in an open position, described nose is engaged with each other to seal the stream in described valve, and when described valve is in the closed position, described nose engages the relative both sides of described valve plate in case fluid flows to the outlet of valve from the entrance of valve.
Disclose the 5th embodiment of gate valve sleeve, described gate valve sleeve comprises: cylindrical jacket barrel member, and described cylindrical jacket barrel member has layout nose at one end; And reinforcement and auxiliary ring component, described reinforcement and described auxiliary ring component are arranged in described cylindrical jacket barrel member.Described reinforcement comprises the ring element engaged with the spacer member of multiple axial orientation.Described ring element comprises the inside opening forming internal surface.Described auxiliary ring component comprises outer surface, described outer surface be positioned at described inside open in be slidably matched layout to be formed between described reinforcement and described auxiliary ring component.
Disclose the 5th embodiment of gate valve, this gate valve comprises main body, valve plate and pair of cylinders shape shroud member.Each cylindrical jacket barrel member of pair of cylinders shape shroud member comprises: elastomer sleeve, described elastomer sleeve has nose at one end.Each elastomer sleeve includes reinforcement and auxiliary ring component.Described reinforcement comprises the ring element engaged with the spacer member of multiple axial orientation, and wherein, described ring element comprises the inside opening forming internal surface.Described ring element comprises outer surface, described outer surface be positioned at described inside open in be slidably matched layout to be formed between described reinforcement and described auxiliary ring component.The surface of described reinforcement and described nose is located away from the first axial distance, makes the ratio of the thickness of this first axial distance and described nose in the scope of about 20% to about 50%.Described pair of cylinders shape shroud member is positioned in valve body, makes their corresponding nose opposite each other.Described a pair nose is also located so that when described valve is in an open position, described nose is engaged with each other to seal the stream in described valve, and when described valve is in the closed position, described nose engages the relative both sides of described valve plate in case fluid flows to the outlet of valve from the entrance of valve.
Embodiment
Before explaining any embodiment of the present invention, it should be understood that word used herein and word should not be considered restriction to illustrate.The project of the act listed hereinafter contained and equivalent and addition item are meaned to the use of " comprising ", " comprising " or " having " and their modification herein.Unless specified or limited, term " installation ", " connection ", " support " and " connection " and their modification are broadly used and are contained direct or indirect installation, connection, support and connection.In addition, " connection " be not limited to physics with " connection " or mechanism is connected or connects.In the following description, in some accompanying drawings of Fig. 1 to 24B, identical reference character and mark are for describing identical, similar or corresponding parts.
With reference to Fig. 1, show exemplary gate valve 1, this gate valve has main body 2, bonnet 4, entrance 6, outlet 8 and fluid flow bore 6.Entrance 6 and outlet 8 can have the respective flanges 10,12 for being fixed on by this valve 1 in the pipe-line system (not shown) that is associated.Bonnet 4 can comprise actuating mechanism 14, and described actuating mechanism is configured to by hydraulic pressure, pneumatic, electric power, gear transmission or other powered device gate valve.
If see, gate valve 1 comprises first set barrel member 16 and the second shroud member 18, and these two shroud members are correspondingly received in the corresponding entrance 6 of valve 1 or export in 8.First set barrel member 16 and the second shroud member 18 are barrel-shaped structure substantially, thus the internal surface 20,22 of sleeve is used as the fluid flow bore 6 of the valve after assembling.
First set barrel member 16 and the second shroud member 18 all have the nose 24,26 at one end place being arranged in sleeve.Due to the position of sleeve in valve body, therefore when valve 1 is in an open position, these noses 24,26 abut against and extrude each other.When valve is in a fully open position, the fluid-encapsulated flow orifice 6 of this compression structure, thus can not leak in valve body 2 or bonnet 4 from the working fluid in hole.
First set barrel member 16 and the second shroud member 18 also all have lip part 28,30, and these lip parts are folded between the flange (not shown) of corresponding flange 10,12 and relevant pipe-line system parts.As constructed, the lip part 28,30 of shroud member 16,18 at valve 1 internal fixtion sleeve, also for carrying out seal valve flange 10,12 relative to the system unit be associated.
In the sectional view of shroud member 16,18, also as can be seen reinforcement 32,34, these reinforcements will described in more detail after a while.
When the valve is closed, gate 40 release sleeve, pushes open nose 26,24 away from each other, and forms the structure shown in Fig. 2.In this structure (complete closed position), the nose 24 of first set barrel member 16 extrudes with the relative both sides 36,38 of the nose 26 of the second shroud member 18 against gate 40, so that entrance 6 and outlet 8 phases are sealed, thus the flowing between both cut-outs.Except cutting off flowing, sealing structure also prevents working fluid from entering the other parts of valve body and bonnet.
Fig. 3 and Fig. 4 shows the separation graph of one of them shroud member of first set barrel member 16 and the second shroud member 18.Although be described with reference to first set barrel member 16, will be appreciated that this explanation is equally applicable to the second shroud member 18.
First set barrel member 16 comprises the elastomer sleeve 42 be combined with reinforcement 32.In an illustrated embodiment, nose 24, lip part 28 and internal surface 20 are formed by elastomer sleeve 42.Reinforcement 32 and nose 24 are adjacent to embed (such as, via moulding process) in elastomer sleeve 42.
As shown in the figure, nose 24 has thickness " A ", and front surface 25 interval one of reinforcement 32 and nose is located apart from " B ".According to the present invention, fixed, provide the shroud member 16 of the B/A ratio with about 20% to about 50% to provide the growth working life of expectation for sleeve.Based on the thickness for the formation of the elastomer compounds of elastomer sleeve 42, the pressure rating of sleeve and gate 40, this ratio can change in described scope.Therefore, according to nominal tubing size (NPS), the value of exemplary B/A is approximately 34% for the NPS of 6 inches, is approximately 37%, is approximately 22% for the NPS of 16 inches, be approximately 48% for the NPS of 32 inches for the NPS of 8 inches.
In order to provide the suitable cooperation of shroud member 16 in valve body 2, the size of the outer surface 44 of elastomer sleeve 42 set and the internal surface being configured to engagement body at least partially.
Fig. 5 and Fig. 6 shows the exploded view of reinforcement 32.In an illustrated embodiment, reinforcement 32 comprises multiple element, and this multiple element comprises the first isolated ring element 46, second isolated ring element 48 and multiple spacer member 50.
Ring element 46,48 all has internal diameter " ID ", external diameter " OD ", width " W " and thickness " t ", and the shroud member 16 that these sizes are set as to formed provides the lateral stiffness of expectation.In order to provide the axial rigidity of expectation to shroud member 16, first ring component 46 is connected by multiple spacer member 50 with the second ring element 48, and these spacer member are positioned at discrete location around the first and second ring elements 46,48.
Spacer member has length " L ", to provide the offset distance of expectation between first ring component 46 and the second ring element 48.Shown spacer member 50 comprises discrete plate element, is furnished with relevant hole 52 in this discrete plate element.When reinforcement 32 is molded in elastomer sleeve 42, hole 52 can be conducive to the aligning of reinforcement 32 during manufacture in mould.
In an illustrated embodiment, first ring component 46 is connected with the independent spacer member 50 of 90 positioned at intervals by four with the second ring element 48.Will be appreciated that spacer element that is more or lesser amt can be used for providing to shroud member 16 axial rigidity of expectation.
There is provided spacer element 50 that shroud member 16 can be made in valve 1 circulation time axial deflection (that is, being parallel to the direction flowing through hole 6) between open and closed positions with the interval of 90 degree.Because the part be positioned between spacer element 50 of ring 46,48 slightly can bend when applying axial force to nose 22,24 and this flexure occurs.The deflection allowed during manufacture can by changing one or more size in ring and/or spacer element and being controlled by the quantity of control interval part 50 and layout.By and the nose interval of shroud member 16 expect that the location reinforcement 32 offset also can provide additional degree of regulation.
According to the present invention, found to allow shroud member 16 in axial direction slightly (as with provide the Sealing of perfect elasticity or perfect rigidity contrary) bend the working life can improving sleeve compared with existing design.As disclosed, sleeve seal design provides and can be conditioned (by regulating aforesaid parameter) with the balance enhanced scheme of applicable embody rule.
Elastomer sleeve 42 can be made up of any various elastomeric material for fluid system applications.When in place, reinforcement 32 can be made up of hot rolled steel or other metal.Also expect that reinforcement 32 can be made up of the nonmetallic material of such as polymer.
Referring now to Fig. 7 to Figure 10, show and combine the second embodiment for the shroud member 116 in the valve of Fig. 1 and Fig. 2 that alternative strengthens structure.As with the previous embodiments, although will be described for first set barrel member 116, this explanation will be applied to the second shroud member equally.
The shroud member 116 of Fig. 7 and 8 comprises the elastomer sleeve 142 being combined with reinforcement 132.In an illustrated embodiment, nose 124, lip part 128 and internal surface 120 are formed by elastomer sleeve 142.Reinforcement 132 and nose 124 are adjacent to embed (being such as molded) in elastomer sleeve 142, to provide the enhancing rigidity of expectation to nose 124 in order to previous reasons.
As directed, nose 124 has thickness " A ", and front surface 125 span " B " of reinforcement 132 and nose locate.As the embodiment of Figures 3 and 4, according to present invention, fixed be the B/A ratio arranging about 20% to about 50% for the shroud member 116 of Fig. 7 and 8 is the growth working life that sleeve provides expectation.Based on the thickness for the formation of the elastomer compounds of elastomer sleeve 42, the pressure rating of sleeve and gate 40, this ratio can change in described scope.Therefore, according to nominal tubing size (NPS), the value of exemplary B/A is approximately 34% for the NPS of 6 inches, is approximately 37%, is approximately 22% for the NPS of 16 inches, be approximately 48% for the NPS of 32 inches for the NPS of 8 inches.
In order to provide the suitable cooperation of shroud member 116 in valve body 2, the size of the outer surface 144 of elastomer sleeve 142 set and the internal surface being configured to engagement body at least partially.
Fig. 9 and Figure 10 shows the separation graph of reinforcement 132.In an illustrated embodiment, reinforcement 132 comprises a pair element, and this pair element comprises the first abutment ring component 146 and the second abutment ring component 148, and the cross section of described first abutment ring component 146 and the second abutment ring component 148 is roughly T-shaped profile.
Each ring element 146,148 all has corresponding internal diameter " ID
1, ID
2", corresponding external diameter " OD
1, OD
2", width " W
1, W
2" and thickness " t
1, t
2", the shroud member 116 that their size is set as to formed provides the rigidity of expectation.
In an illustrated embodiment, first ring component 146 also comprises multiple hole 152 be arranged in wherein.When reinforcement 132 is molded in elastomer sleeve 142, this some holes 152 can be conducive to the aligning of reinforcement 132 during manufacture in mould.
As best visible in fig. 8, first ring component 146 and the second ring element 148 are positioned in elastomer sleeve 142, make nose 124 direct neighbor of the second ring element 148 and shroud member 116.In the structure shown here, the wide side surface 149 of the second ring element 148 is adjacent with nose 124.In the embodiment of alternative, this structure can be touched, thus is positioned to by first ring component 146 adjacent with nose 124, and the second ring element 148 is positioned at the opposite end away from nose 124 of first ring component.In such alternative arrangements, the relative narrower surface of first ring component 146 is adjacent with nose 124.
As the same with the first embodiment, elastomer sleeve 142 can be made up of any various elastomeric material for fluid system applications.Reinforcement 132 can be made up of rolled steel or other suitable metal.Also expect that reinforcement 132 can be made up of the nonmetallic material of such as polymer.
Referring now to Figure 11 to 14, show the 3rd embodiment for the shroud member 216 in the valve of Fig. 1 and 2 of the enhancing structure combining alternative.As with the previous embodiments, although will be described for first set barrel member 216, this explanation will be applied to the second shroud member equally.
The shroud member 216 of Figure 11 and 12 comprises the elastomer sleeve 242 being combined with reinforcement 232.In an illustrated embodiment, nose 224, lip part 228 and internal surface 220 are formed by elastomer sleeve 242.Reinforcement 232 and nose 224 are adjacent to embed (being such as molded) in elastomer sleeve 242, to provide the enhancing rigidity of expectation to nose 224 in order to previous reasons.
As directed, nose 224 has thickness " A ", and front surface 225 span " B " of reinforcement 232 and nose locate.As with the previous embodiments, according to present invention, found out that the shroud member 216 of Figure 11 and 12 arranges the B/A ratio of about 20% to about 50% is the growth working life that sleeve provides expectation.Based on the thickness for the formation of the elastomer compounds of elastomer sleeve 142, the pressure rating of sleeve and gate 40, this ratio can change in described scope.
In order to provide suitably equipped in valve body 2 of shroud member 216, the size of the outer surface 244 of elastomer sleeve 242 set and the internal surface being configured to engagement body at least partially.
Figure 13 and Figure 14 shows the separation graph of reinforcement 232.In an illustrated embodiment, reinforcement 232 comprises the spacer member 250 of ring element 246 and multiple lateral arrangement.These spacer member comprise hole 252, and when reinforcement 232 is molded in elastomer sleeve 242, described hole is for being conducive to the aligning of reinforcement 232 during manufacture in mould.
Each spacer member all has length " L ".In an illustrated embodiment, four independent spacer member 250 are depicted as with the positioned at intervals of 90 degree.Will be appreciated that spacer element that is more or lesser amt can be used for providing to shroud member 216 axial rigidity of expectation.
Ring element 246 has internal diameter " ID ", external diameter " OD ", width " W " and thickness " t ", and the shroud member 216 that these sizes are set as to formed provides the rigidity of expectation.As best visible in fig. 12, reinforcement 232 is positioned in elastomer sleeve 242, makes nose 224 direct neighbor of ring element 246 and shroud member 216.In the structure shown here, wide side surface 249(Figure 13 of ring element 246) adjacent with nose 224.
As with the previous embodiments, elastomer sleeve 242 can be made up of any various elastomeric material for fluid system applications.In due course, reinforcement 232 can be made up of hot rolled steel or other metal.Also expect that reinforcement 232 can be made up of the nonmetallic material of such as polymer.
Referring now to Figure 15 to 19, the enhancing structure in conjunction with an alternative again shows the 4th embodiment for the shroud member 316 in the valve of Fig. 1 and 2.As with the previous embodiments, although will be described for first set barrel member 316, this explanation will be applied to the second shroud member equally.
The shroud member 316 of Figure 15 and 16 comprises the elastomer sleeve 342 being combined with reinforcement 332.In an illustrated embodiment, nose 324, lip part 328 and internal surface 320 are formed by elastomer sleeve 342.Reinforcement 332 and nose 324 are adjacent to embed (being such as molded) in elastomer sleeve 342, to provide the enhancing rigidity of expectation to nose 324 in order to previous reasons.
As directed, nose 324 has thickness " A ", and reinforcement 332 is located with front surface 325 span " B " of nose.As with the previous embodiments, according to present invention, found out that the shroud member 316 of Figure 15 and 16 arranges the B/A ratio of about 20% to about 50% is the growth working life that sleeve provides expectation.Based on the thickness for the formation of the elastomer compounds of elastomer sleeve 142, the pressure rating of sleeve and gate 40, this ratio can change in described scope.
In order to provide suitably equipped in valve body 2 of shroud member 316, the size of the outer surface 344 of elastomer sleeve 342 set and the internal surface being configured to engagement body at least partially.
Figure 17 to 19 shows the separation graph of reinforcement 332.In an illustrated embodiment, reinforcement 332 comprises multiple element, and this multiple element comprises first ring component 346, second ring element 348, multiple pin 349 and multiple spacer member 351.
Ring element 346,348 all has corresponding internal diameter " ID
1, ID
2", external diameter " OD
1, OD
2", width " W
1, W
2" and thickness " t
1, t
2", the shroud member 316 that these sizes are set as to formed provides the rigidity of expectation.
In an illustrated embodiment, first ring component 346 and the second ring element 348 can relative to each other move.This function is provided by multiple pin 349, these pin be fixed to first ring 346 and via the corresponding aperture 347 in the second ring 348 together with the second ring slip joint.Operationally, first ring component 346 and the second ring element 348 relative to each other can move via the effect of first ring 346, and this first ring can slide along pin 349.This provides for strengthening structure the amount allowing nose to expect in the flexure of valve 1 cycle period.
First ring 346 is provided with multiple spacer member 351, aims in mould during manufacture to be conducive to this reinforcement 332 when reinforcement 332 is molded in elastomer sleeve 342.
As best visible in figure 16, first ring component 346 and the second ring element 348 are positioned in elastomer sleeve 342, make nose 324 direct neighbor of first ring component 346 and shroud member 316.In the structure shown here, the wide side surface 345 of the second ring element 348 is adjacent with nose 324.In the embodiment of alternative, this structure can be touched, thus is positioned to adjacent with nose 324 by the second ring element 348, and is positioned on the opposite end away from nose 324 of first ring component by first ring component 346.
As with the previous embodiments, elastomer sleeve 342 can be made up of any various elastomeric material for fluid system applications.When in place, reinforcement 332 can be made up of hot rolling steel or other metal.Also expect that reinforcement 332 can be made up of the nonmetallic material of such as polymer.
Referring now to Figure 20 to 23, show the 5th embodiment for the shroud member 216 in the valve of Fig. 1 and 2 of the enhancing structure in conjunction with another alternative.As with the previous embodiments, although will be described for first set barrel member 416, this explanation will be applied to the second shroud member equally.
The shroud member 416 of Figure 20 and 21 comprise be combined with before the reinforcement 232 that describes with reference to Figure 11 to 14 and be positioned at the elastomer sleeve 442 of the auxiliary ring component 460 inside reinforcement 232 partly.In an illustrated embodiment, nose 424, lip part 428 and internal surface 420 are formed by elastomer sleeve 442.Reinforcement 232 and nose 424 are adjacent to embed (being such as molded) in elastomer sleeve 442, to provide the enhancing rigidity of expectation to nose 424 in order to previous reasons.
As directed, nose 424 has thickness " A ", and front surface 425 span " B " of reinforcement 232 and nose 424 locate.As with the previous embodiments, according to present invention, found out that for the shroud member 416 of Figure 20 and 21 provides the B/A ratio of about 20% to about 50% to be the growth working life that sleeve provides expectation.Based on the thickness for the formation of the elastomer compounds of elastomer sleeve 442, the pressure rating of sleeve and gate 40, this ratio can change in described scope.Therefore, according to nominal tubing size (NPS), the value of exemplary B/A is approximately 34% for the NPS of 6 inches, is approximately 37%, is approximately 22% for the NPS of 16 inches, be approximately 48% for the NPS of 32 inches for the NPS of 8 inches.
In order to provide suitably equipped in valve body 2 of shroud member 416, the size of the outer surface 444 of elastomer sleeve 242 set and the internal surface being configured to engagement body 2 at least partially.
Be back to Figure 13 and 14 now, the ring element 246 of reinforcement 232 comprises inside opening 251, this inside opening has to be formed the internal diameter " ID " of internal surface 253, external diameter " OD ", width " W " and thickness " t ", and their size is set as to formed shroud member 416(Figure 20) rigidity of expectation is provided.As best visible in fig. 20, reinforcement 232 is positioned in elastomer sleeve 442, makes nose 424 direct neighbor of ring element 246 and shroud member 416.In the structure shown here, wide side surface 249(Figure 13 of ring element 246) adjacent with nose 424.
With reference to Figure 22 and 23, auxiliary ring component 460 has annular shape and comprises internal diameter " ID
x", form the external diameter " OD of outer surface 464
x" and thickness " t
x".With reference to Figure 20 and 21, the external diameter OD of auxiliary ring component 460
xbe less than the internal diameter ID of the inside opening 251 of reinforcement 232.Auxiliary ring component 460 embeds (such as shaping) in elastomer sleeve 442 and be located so that thickness t
xa part be positioned in the inside opening 251 of reinforcement 232, formed between reinforcement 232 and auxiliary ring component 460 thus and to be slidably matched layout.In this embodiment, reinforcement 232 and auxiliary ring component 460 can in axial direction relative to each other move.Now by by reference to the accompanying drawings 1 and 2 explanation the work of present example is described with reference to Figure 24 A and 24B.Power 24A and 24B illustrates the partial sectional view of gate 40 and shroud member 416.When valve 1 is opened (Figure 24 A), gate 40 not compression sleeve component 416(only in order to the clear partial view that illustrate only shroud member 416).When valve 1 cuts out, gate 40 extrudes nose 424, therefore makes reinforcement 232 and auxiliary ring component 460 along the axial deformation (Figure 24 B) of the axial direction 462 of valve 1.According to the present invention, reinforcement 232 offsets larger amount along central axis than auxiliary ring component 460.Therefore, compared with when nose 424 is not extruded, the thickness t of auxiliary ring component 460
xmore parts be positioned in the inside opening 251 of reinforcement 232.Auxiliary ring component 460 together with the circumferential strength of the increase for elastomer sleeve 442 for elastomer sleeve 442 provides additional axial rigidity.Like this, the structure of the 5th embodiment is suitable for high-pressure applications.
As with the previous embodiments, elastomer sleeve 442 can be made up of any various elastomeric material for fluid system applications.When in place, reinforcement 232 and/or auxiliary ring component 460 can be made up of hot rolled steel or other metal.Also expect that reinforcement 232 and/or auxiliary ring component 460 can be made up of the nonmetallic material of such as polymer.
Will be appreciated that, disclosed in this specification (comprise any with claim, summary and accompanying drawing), feature can with combined in any combination, and clearly state unless there are other, disclosed in this manual each feature can be replaced by the alternate feature being used as identical, equivalent or similar object.Therefore, clearly state unless there are other, disclosed each feature is all examples for the equivalent of only generic series or similar characteristics.
The present invention is not limited to the details of previous embodiment.The present invention prolongs and any novel feature of feature or the combination of any novelty disclosed in this specification (comprise any with claim, summary and accompanying drawing), or prolongs and any novel step of step of so disclosed any method or process or any novelty assembling.